ASNT RT II EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
ASNT RT II
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1. low voltage x-ray tubes are generally fitted with win- beryllium
dows made of:
2. a monochromatic x-ray beam is: a beam consisting of a sin-
gle wavelength
3. the general method of producing x-rays involves the target
sudden deceleration of high velocity electrons in a
solid body called a:
4. if it were necessary to radiograph a 7" thick steel prod- co-60
uct, which gamma ray source would most likely be
used?
5. a co-60 gamma source has an approximate practical 9" of steel or its equivalent
thickness limit of:
6. the absorption of gamma rays from a given source atomic number, density,
when passing through matter depends on the: and thickness of the mat-
ter
7. the fact that gases, when bombarded by radiation radiation detection equip-
ionize and become electrical conductors make them ment
useful in:
8. the velocity of electrons striking the target in an x-ray voltage difference be-
tube is a function of the: tween the cathode and
anode
9. the uneven distribution of developed grains within the graininess
emulsion of a processed x-ray film causes the subjec-
tive impression of:
10. 15 R/h
, ASNT RT II
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the gamma ray intensity at 1 ft from a 1 Ci source of
radioactive co-60 is nearest to:
11. the focal spot in an x-ray tube: should be as small as
possible without unduly
shortening the life of the
tube
12. in an x-ray tube, the filament and focusing cup are the cathode
two essential parts of the:
13. the quantity of radiation which will produce, by means Roentgen
of ionization, one electrostatic unit of electricity in
0.001293 g of dry air is known as a:
14. the specific activity of an isotopic source is usually curies per gram (Ci/g)
measured in:
15. which isotope has the longest half-life? Cs- 137
16. the primary form of energy conversion when elec- heat
trons strike a target in an x-ray tube results in the
production of:
17. the slope of a straight line joining two points of spec- average gradient
ified densities on a characteristic curve of a film is
known as the:
18. an x-ray film having wide latitude also has, by defini- low contrast
tion:
19. the purpose of circulating oil in some types of x-ray dissipate heat
tubes is to:
ASNT RT II
UPDATE ALREADY A GRADE|NEW!
Study online at https://quizlet.com/_2jx64u
1. low voltage x-ray tubes are generally fitted with win- beryllium
dows made of:
2. a monochromatic x-ray beam is: a beam consisting of a sin-
gle wavelength
3. the general method of producing x-rays involves the target
sudden deceleration of high velocity electrons in a
solid body called a:
4. if it were necessary to radiograph a 7" thick steel prod- co-60
uct, which gamma ray source would most likely be
used?
5. a co-60 gamma source has an approximate practical 9" of steel or its equivalent
thickness limit of:
6. the absorption of gamma rays from a given source atomic number, density,
when passing through matter depends on the: and thickness of the mat-
ter
7. the fact that gases, when bombarded by radiation radiation detection equip-
ionize and become electrical conductors make them ment
useful in:
8. the velocity of electrons striking the target in an x-ray voltage difference be-
tube is a function of the: tween the cathode and
anode
9. the uneven distribution of developed grains within the graininess
emulsion of a processed x-ray film causes the subjec-
tive impression of:
10. 15 R/h
, ASNT RT II
Study online at https://quizlet.com/_2jx64u
the gamma ray intensity at 1 ft from a 1 Ci source of
radioactive co-60 is nearest to:
11. the focal spot in an x-ray tube: should be as small as
possible without unduly
shortening the life of the
tube
12. in an x-ray tube, the filament and focusing cup are the cathode
two essential parts of the:
13. the quantity of radiation which will produce, by means Roentgen
of ionization, one electrostatic unit of electricity in
0.001293 g of dry air is known as a:
14. the specific activity of an isotopic source is usually curies per gram (Ci/g)
measured in:
15. which isotope has the longest half-life? Cs- 137
16. the primary form of energy conversion when elec- heat
trons strike a target in an x-ray tube results in the
production of:
17. the slope of a straight line joining two points of spec- average gradient
ified densities on a characteristic curve of a film is
known as the:
18. an x-ray film having wide latitude also has, by defini- low contrast
tion:
19. the purpose of circulating oil in some types of x-ray dissipate heat
tubes is to:
